Medusa

Medusa is a disassembler designed to be both modular and interactive. It runs on Windows and Linux, it should be the same on OSX. This project is organized as a library. To disassemble a file you have to use medusa_text or qMedusa.

Build-bot

branch	Travis	AppVeyor
dev

Prerequisites

Medusa requires the following libraries: boost >= 1.55 (system, filesystem, thread, date_time), OGDF (required git), and Qt5 >= 5.2 for the GUI. You also need CMake for compilation and a C++11 compiler (VS2015 update 2 on Windows). Git is optional but allows to clone remote repository for specific features, see Compilation/Options.

Feature

Loader
Name	Mapping	Import	Export	Symbols	Notes
ELF	yes	yes	no	no	Some kind of reloc are not handled
PE	yes	yes	yes	no	Reloc are not handled
Mach-O	yes	yes	no	no	Doesn't support FAT binary on X86, esi as glbptr is not handled
GameBoy	yes	yes	yes	yes	GameBoy Color registers are not handled All mappers are not handled
ST62ROM	yes	yes	yes	yes

Architecture
Name	Mode	Disassembly	Semantic	Notes
x86	16-bit	yes	partial	Support until SEE4.2
x86	32-bit	yes
x86	64-bit	yes
z80	gameboy	yes	yes
avr8		no	no	Broken
arm	normal	partial	partial
arm	thumb	partial	no
arm	thumb2	partial	no
st62		yes	partial

Tool
Name	interactivity	Comment	Label	Graph	Database	Notes
qt	partial	yes	yes	yes	yes
text	no	no	no	no	yes

Binding
Name	Notes
Python	WIP

Database
Name	Save	Load	Notes
text	yes	yes	Incomplete

Operating System
Name	Notes
UNIX	WIP
Windows	WIP

Roadmap

Each versions of Medusa bring a new specific feature.

0.1 the beginning of the project
0.2 new qt interface
0.3 flow graph
0.4 load/save database
0.5 semantic support
0.6 better python binding
0.7 debugger

Compilation

First off, you need boost libraries; you can either download a built version or compile yourself. Boost is available here

Now, make sure you have installed Qt5 if you need a graphical user interface (and I'm pretty sure you do ;)). Medusa requires at least the version 5.2, be sure to pick the good version on the official website or use your package manager.

Finally, we're ready to retrieve and compile medusa:

git clone https://github.com/wisk/medusa.git
mkdir build
cd build
# UNIX users should define CMAKE_BUILD_TYPE e.g. -DCMAKE_BUILD_TYPE=Release to compile Medusa with optimization
cmake -DBOOST_ROOT:PATH=<path to the boost directory> -DQT5_CMAKE_PATH:PATH=<Path to Qt5 cmake scripts directory> ..

# for UNIX users
make && cd bin && ./qMedusa

# for Windows users
explorer Medusa.sln

Note: If CMake is unable to find Boost on Windows, try to define BOOST_LIBRARYDIR. This variable must be set to the library directory (e.g.: C:\boost_1_55_0\lib64-msvc-14.0). In my configuration, QT5_CMAKE_PATH is set to /usr/lib/cmake on ArchLinux and C:\Qt\5.6\msvc2015_64\lib\cmake on Windows. For Windows users, you should probably add -G"Visual Studio 14 Win64" where 14 is your Visual Studio version and Win64 if you build medusa in 64-bit. To run the Qt interface on Windows, you may have to add the folder %QTDIR%\bin to your %PATH% and copy the folder %QTDIR%\plugins\platforms. By default, Medusa searches modules in the current folder, so you should run medusa executables from the folder where modules are located (e.g. build/bin on UNIX or build\bin\{Debug,Release,...} on Windows).

Options

Name	Default value	Meaning
MEDUSA_BUILD_TOOLS	TRUE	Compile tools
MEDUSA_BUILD_TESTS	TRUE	Compile tests
MEDUSA_CMAKE_USE_COTIRE	FALSE	Use cotire for building
MEDUSA_BUILD_WITH_OGDF	FALSE	Add OGDF project and build it, this library allows qMedusa to display graph
MEDUSA_MODULES_TO_BUILD	"all"	Semicolon-separated list of modules to build, or "all"

Screenshots

Main interface

Control flow graph

Interactivity

Binding

Docker image

If you do not wish to install the various dependencies on your system, you can use this docker image instead. Even though it is working out of the box, you may want to customize it to suit your needs or for added security (e.g. restrict ssh access to public key authentication only).

Build the Medusa container

docker build -t medusa .

Going inside the container

docker run -it medusa /bin/bash

OR launch qMedusa (ssh with X forwarding)

docker run -it -d medusa
ssh -X developer@<containers_ip> "medusa/build/bin/qMedusa"

Contacts

IRC: irc://freenode.net/#medusa_disasm

Twitter: https://twitter.com/@medusa_disasm

Acknowledgements

My schoolmates: epieddy, flalande and FX.
My workmate: gg, w1gz, lemme.
Yusuke Kamiyamane for his icons
gunmetal313, saeschdivara, kangjoni76, KarlVogel, ekse for their contributions.

License

wisk/medusa

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